Quantcast

A community for students. Sign up today!

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

KateMarie123

  • 2 years ago

Jimmy’s proof: Statement 1: In triangle ADC and BCD, AD = BC (opposite sides of a rectangle are congruent) Statement 2: Angle ADC = Angle BCD (angles of a rectangle are 90°) Statement 3: DC=DC (transitive property of equality) Statement 4: Triangle ADC and BCD are congruent (by SAS postulate) Statement 5: AC = BD (by CPCTC) Which statement in Jimmy’s proof has an error?

  • This Question is Closed
  1. KateMarie123
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    1 Attachment
  2. King
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    no error

  3. Hashir
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    yeah apparently there is no error !!

  4. King
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Yippee!!Cheers for Jimmy!!

  5. Hashir
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    no i think there can be a mistake in statement five ..... if you consider each statement independent of each other then in statement 5 the student have not mentioned the congruent triangle so may be it can be considered as incorrect ever though the relation is correct

  6. Hashir
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    ever=even

  7. Aditi_Singh
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    I guess.. there could be an error in statement 1 , where he says that "opposite sides of a rectangle are congruent)" but .. as far as i know, you never say they are 'congruent', you always say they are 'equal'! :/

  8. King
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    if u consider each statement independent then statement 4 is also wrong as u cannot say 2 triangles are congruent without proof or reason.....

  9. Hashir
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    thats CPCTC may be incorrect ....

  10. King
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    as far as i know its CPCT[Corresponding Parts of Congruent Triangles] NOT CPCTC

  11. King
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    nah CPCTC is rite its [Corresponding Parts of Congruent Triangles are Congruent]

  12. Aditi_Singh
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    @Hashir : Naah, 'CPCTC' is absolutely correct.. because.. he already proved that the 2 triangles are equal by SAS postulate..

  13. Hashir
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    i am saying that there may be a possibility .... if we consider each statement independent

  14. Aditi_Singh
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    CPCTC ('Corresponding parts of congruent triangles are congruent') is nothing but another name/abbr. for CPCT ..

  15. King
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Okay Conclusion:Jimmy is an over-cautious idiot trying to find a mistake in an absolutely correct proof!!

  16. Hashir
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    so 3 has a problem ... 3 is incorrect ... got it now

  17. King
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    whats wrong in 3??DC=DC is not true?

  18. Hashir
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    bro in transitive property we prove that if a=b and b=c then a=c .... not a=a !!!

  19. Hashir
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    it doesnt make any sense

  20. Aditi_Singh
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    @Hashir : I totally agree with you!!.. transitive property is --> if a=b, and b=c .. a=c! :P

  21. Hashir
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    it can be correct if he says that DC=CD

  22. Hashir
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    but he didnt say that

  23. King
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    oh!ok!i did not know that!!so yes Jimmy being over-cautious helped him as @Hashir the detective finds the criminal eluding his 2 pardnas!

  24. King
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    ;D

  25. Not the answer you are looking for?
    Search for more explanations.

    • Attachments:

Ask your own question

Ask a Question
Find more explanations on OpenStudy

Your question is ready. Sign up for free to start getting answers.

spraguer (Moderator)
5 → View Detailed Profile

is replying to Can someone tell me what button the professor is hitting...

23

  • Teamwork 19 Teammate
  • Problem Solving 19 Hero
  • You have blocked this person.
  • ✔ You're a fan Checking fan status...

Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.

This is the testimonial you wrote.
You haven't written a testimonial for Owlfred.